android 自定义加减按钮
16lz
2021-01-23
1.定义两个shape：
my_button_shape_normal.xml：
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <stroke android:width="1dp" android:color="#007FFF" /> <corners android:radius="5dip" /> <padding android:bottom="1dp" android:left="10dp" android:right="10dp" android:top="1dp" /></shape>
my_button_shape_pressed.xml：
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <stroke android:width="1dp" android:color="#007FFF" /> <corners android:radius="5dip" /> <padding android:bottom="1dp" android:left="10dp" android:right="10dp" android:top="1dp" /></shape>
2。定义一个drawable:my_button_style.xml
<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/my_button_shape_normal" android:state_focused="false" android:state_pressed="false"></item> <item android:drawable="@drawable/my_button_shape_pressed" android:state_focused="false" android:state_pressed="true"></item></selector>
3.定义button布局(mybutton.xml):
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > <Button android:id="@+id/reduce" android:layout_width="50dp" android:layout_height="30dp" android:background="@drawable/my_button_style" android:gravity="center" android:paddingBottom="10dp" android:text="-" android:textColor="#007FFF" /> <Button android:id="@+id/add" android:layout_width="50dp" android:layout_height="30dp" android:layout_toRightOf="@+id/reduce" android:background="@drawable/my_button_style" android:gravity="center" android:paddingBottom="10dp" android:text="+" android:textColor="#007FFF" /></RelativeLayout>
4.定义MyButton类：
public class MyButton extends RelativeLayout {private View view;private Button add, reduce;private OnAddReduceChangeStatusListener mAddReduceChangeStatusListener;public MyButton(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);// TODO Auto-generated constructor stub}public MyButton(Context context, AttributeSet attrs) {super(context, attrs);// TODO Auto-generated constructor stubview = LayoutInflater.from(context).inflate(R.layout.mybutton, this, true);init();}public MyButton(Context context) {super(context);// TODO Auto-generated constructor stub}private void init() {add = (Button) view.findViewById(R.id.add);reduce = (Button) view.findViewById(R.id.reduce);add.setOnTouchListener(new ComponentOnTouch());reduce.setOnTouchListener(new ComponentOnTouch());}class ComponentOnTouch implements OnTouchListener {@Overridepublic boolean onTouch(View v, MotionEvent event) {// TODO Auto-generated method stubswitch (v.getId()) {case R.id.add:if (mAddReduceChangeStatusListener != null) {mAddReduceChangeStatusListener.add(MyButton.this.getId(),event.getAction());}break;case R.id.reduce:if (mAddReduceChangeStatusListener != null) {mAddReduceChangeStatusListener.reduce(MyButton.this.getId(),event.getAction());}break;}return true;}}public void setOnAddReduceChangeStatusListener(OnAddReduceChangeStatusListener listener) {this.mAddReduceChangeStatusListener = listener;}public abstract interface OnAddReduceChangeStatusListener {public abstract boolean add(int viewId,int eventAction);public abstract boolean reduce(int viewId,int eventAction);}} 5。布局中使用：
<package.MyButton android:id="@+id/mybutton_id" android:layout_width="wrap_content" android:layout_height="wrap_content" > </package.MyButton>
6.代码中使用:
a.初始化：
mybutton = (MyButton) findViewById(R.id.mybutton_id);mybutton.setOnAddReduceChangeStatusListener(new OnAddReduceListener());
b.listener监听:
class OnAddReduceListener implements OnAddReduceChangeStatusListener {@Overridepublic boolean add(int viewId, int eventAction) {// TODO Auto-generated method stubif (eventAction == MotionEvent.ACTION_DOWN) {onTouchChange("add");} else if (eventAction == MotionEvent.ACTION_UP) {if (plusThread != null) {isOnLongClick = false;}} else if (eventAction == MotionEvent.ACTION_MOVE) {if (plusThread != null) {isOnLongClick = true;}} else if (eventAction == MotionEvent.ACTION_CANCEL) {if (plusThread != null) {isOnLongClick = false;}}return true;}@Overridepublic boolean reduce(int viewId, int eventAction) {// TODO Auto-generated method stubif (eventAction == MotionEvent.ACTION_DOWN) {onTouchChange("reduce");} else if (eventAction == MotionEvent.ACTION_UP) {if (miusThread != null) {isOnLongClick = false;}} else if (eventAction == MotionEvent.ACTION_MOVE) {if (miusThread != null) {isOnLongClick = true;}} else if (eventAction == MotionEvent.ACTION_CANCEL) {if (miusThread != null) {isOnLongClick = false;}}return true;}}private void onTouchChange(String method) {if (method.equals("add")) {plusThread = new PlusThread();isOnLongClick = true;plusThread.start();} else if (method.equals("reduce")) {miusThread = new MiusThread();isOnLongClick = true;miusThread.start();}} c,定义两个线程用来加减：
// 减操作class MiusThread extends Thread {@Overridepublic void run() {while (isOnLongClick) {try {Thread.sleep(200);myHandler.sendEmptyMessage(1);} catch (InterruptedException e) {e.printStackTrace();}super.run();}}}// 加操作class PlusThread extends Thread {@Overridepublic void run() {while (isOnLongClick) {try {Thread.sleep(200);myHandler.sendEmptyMessage(2);} catch (InterruptedException e) {e.printStackTrace();}super.run();}}} 使用Handler进行处理：
Handler myHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {// TODO Auto-generated method stubif (msg.what == 1) {//加操作} else if (msg.what == 2) {//减操作}}};